As e all know, internal linking is very important to spread the link juice through the website, most people recommend to use a silo and have the posts only link back to categories / homepage, however would that really be the best choice? Silo in itself is fine but since we are looking to rank the inner pages / articles and not the category / homepage itself wouldn't interlinking the articles IN THE SAME CATEGORY also be important? At least that's what I believe however I'm finding myself with a dillema. I want to interlink but I'm targetting similar keywords where only a word or number change which ends up with a high partial keyword density really high if I use blogrolls / Related Posts plugins. Let's say I'm targetting: "Best beard shaver" and I have several variations, each variation is 1 article "best beard shaver model 21321321" "best beard shaver model 12837812387" "best beard shaver model 8599328" "best beard shaver model 554834" If I use a blog roll / related posts plugin each of my articles would end up with really high partial keyword density (best beard shaver model would end up with 3-4% density instead of 1%) So my question is, how can I interlink articles where only a word or number change to avoid high keyword density.